ADG731
32-Channel, Serially Controlled 3.5 Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexer
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Overview
Features and Benefits
- 3-Wire SPI Compatible Serial Interface
- 1.8 V to 5.5 V Single Supply
- ±2.5 V Dual-Supply Operation
- 4 Ω On Resistance
- 0.5 Ω On Resistance Flatness
- 7 mm × 7 mm 48-Lead Chip Scale Package (LFCSP) or 48-Lead TQFP Package
- Rail-to-Rail Operation
- Power-On Reset
- See data sheet for additional feature
Product Details
The ADG731 / ADG725 are monolithic, CMOS, 32-channel/dual 16-channel analog multiplexers with a serially controlled 3-wire interface. The ADG731 switches one of 32 inputs (S1–S32) to a common output, D. The ADG725 can be configured as a dual mux switching one of 16 inputs to one output, or a differential mux switching one of 16 inputs to a differential output.
These mulitplexers utilize a 3-wire serial interface that is compatible with SPI®, QSPI™, MICROWIRE™, and some DSP interface standards. On power-up, the Internal Shift Register contains all zeros and all switches are in the OFF state.
These multiplexers are designed on an enhanced submicron process that provides low power dissipation yet gives high switching speed with very low on resistance and leakage currents. They operate from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply, making them ideally suited to a variety of applications. On resistance is in the region of a few ohms, is closely matched between switches, and is very flat over the full signal range.
These parts can operate equally well as either multiplexers or demultiplexers and have an input signal range that extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels.
The ADG731 and ADG725 are serially controlled 32-channel, and dual/differential 16-channel multiplexers, respectively. They are available in either a 48-lead LFCSP or TQFP package.
PRODUCT HIGHLIGHTS
- 3-Wire Serial Interface.
- 1.8 V to 5.5 V Single-Supply or ±2.5 V Dual-Supply Operation. These parts are specified and guaranteed with 5 V ± 10%, 3 V ± 10% single-supply, and ± 2.5 V ±10% dual-supply rails.
- On Resistance of 4 W.
- Guaranteed Break-Before-Make Switching Action.
- 7 mm × 7 mm 48-Lead Chip Scale Package (LFCSP) or
- 48-Lead TQFP Package.
APPLICATIONS
- Optical Applications
- Data Acquisition Systems
- Communication Systems
- Relay Replacement
- Audio and Video Switching
- Battery-Powered Systems
- Medical Instrumentation
- Automatic Test Equipment
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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Switches and Multiplexers Product Selection Guide5/9/2008PDF614 K
Tools & Simulations
IBIS Models
IBS
ADG731 IBIS Model
71.92 K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADG731BCPZ | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) | |
| ADG731BCPZ-REEL | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) | |
| ADG731BCPZ-REEL7 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) | |
| ADG731BSUZ | Material Declaration | Reliability Data | 48-Lead TQFP (7mm x 7mm) | |
| Wafer Fabrication Data |
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ADG731 Discussions
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List Pricing
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